mirror of
https://github.com/erg-lang/erg.git
synced 2025-07-22 20:45:28 +00:00
114 lines
2.8 KiB
Rust
114 lines
2.8 KiB
Rust
use std::borrow::Borrow;
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use std::fmt;
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use std::hash::Hash;
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use erg_common::dict::Dict;
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use erg_common::set::Set;
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use erg_common::shared::Shared;
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use erg_common::Str;
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use crate::context::TraitImpl;
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/// Caches checked modules.
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/// In addition to being queried here when re-imported, it is also used when linking
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/// (Erg links all scripts defined in erg and outputs them to a single pyc file).
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#[derive(Debug, Default)]
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pub struct TraitImpls {
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cache: Dict<Str, Set<TraitImpl>>,
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}
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impl fmt::Display for TraitImpls {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(f, "TraitImpls {{")?;
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for (name, impls) in self.cache.iter() {
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writeln!(f, "{name}: {impls}, ")?;
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}
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write!(f, "}}")
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}
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}
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impl TraitImpls {
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pub fn new() -> Self {
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Self { cache: Dict::new() }
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}
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pub fn get<P: Eq + Hash + ?Sized>(&self, path: &P) -> Option<&Set<TraitImpl>>
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where
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Str: Borrow<P>,
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{
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self.cache.get(path)
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}
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pub fn get_mut<Q: Eq + Hash + ?Sized>(&mut self, path: &Q) -> Option<&mut Set<TraitImpl>>
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where
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Str: Borrow<Q>,
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{
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self.cache.get_mut(path)
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}
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pub fn register(&mut self, name: Str, impls: Set<TraitImpl>) {
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self.cache.insert(name, impls);
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}
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pub fn remove<Q: Eq + Hash + ?Sized>(&mut self, path: &Q) -> Option<Set<TraitImpl>>
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where
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Str: Borrow<Q>,
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{
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self.cache.remove(path)
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}
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pub fn initialize(&mut self) {
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self.cache.clear();
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}
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}
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#[derive(Debug, Clone, Default)]
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pub struct SharedTraitImpls(Shared<TraitImpls>);
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impl fmt::Display for SharedTraitImpls {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(f, "Shared{}", self.0)
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}
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}
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impl SharedTraitImpls {
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pub fn new() -> Self {
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Self(Shared::new(TraitImpls::new()))
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}
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pub fn get<Q: Eq + Hash + ?Sized>(&self, path: &Q) -> Option<&Set<TraitImpl>>
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where
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Str: Borrow<Q>,
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{
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let ref_ = unsafe { self.0.as_ptr().as_ref().unwrap() };
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ref_.get(path)
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}
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pub fn get_mut<Q: Eq + Hash + ?Sized>(&self, path: &Q) -> Option<&mut Set<TraitImpl>>
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where
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Str: Borrow<Q>,
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{
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let ref_ = unsafe { self.0.as_ptr().as_mut().unwrap() };
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ref_.get_mut(path)
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}
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pub fn register(&self, name: Str, impls: Set<TraitImpl>) {
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self.0.borrow_mut().register(name, impls);
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}
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pub fn remove<Q: Eq + Hash + ?Sized>(&self, path: &Q) -> Option<Set<TraitImpl>>
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where
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Str: Borrow<Q>,
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{
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self.0.borrow_mut().remove(path)
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}
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pub fn keys(&self) -> impl Iterator<Item = Str> {
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let ref_ = unsafe { self.0.as_ptr().as_ref().unwrap() };
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ref_.cache.keys().cloned()
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}
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pub fn initialize(&self) {
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self.0.borrow_mut().initialize();
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}
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}
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